Question

periodic table basics practice
choose all that apply to mercury
□ transition metal
□ group 12
□ 6 electron energy level
□ period 6
□ member of the actinide series
□ member of the lanthanide series
□ same period as erbium
□ same group as zinc
□ 80 protons
□ liquid at room temperature

Explanation:

• Transition Metal: Mercury (Hg) is a transition metal (d - block, Group 12).
• Group 12: Hg is in Group 12.
• 6 electron energy level: Hg is in Period 6, so it has 6 electron energy levels.
• Period 6: Hg is in Period 6.
• Same group as zinc: Zn is in Group 12, same as Hg.
• 80 protons: Atomic number of Hg is 80, so 80 protons.
• Liquid at room temperature: Hg is liquid at room temp.
• Not actinide/lanthanide (f - block, Hg is d - block) or same period as erbium (Er is Period 6? No, Er is Period 6? Wait, Er is lanthanide, Period 6. Wait, Hg is Period 6, Er is Period 6? Wait, no, Hg is Period 6, Er is Period 6? Wait, Er's atomic number is 68, Hg is 80. Period 6 elements are atomic numbers 55 - 86. So Er (68) and Hg (80) are in Period 6. Wait, but earlier thought: lanthanides are Period 6, f - block. Hg is d - block, Period 6. So "Same period as erbium" – Er is Period 6, Hg is Period 6, so that's true? Wait, maybe I made a mistake. Let's re - check:
• Actinide series: f - block, Period 7, so Hg is not.
• Lanthanide series: f - block, Period 6, Hg is d - block, so no.
• Same period as erbium: Er is in Period 6 (lanthanides, Period 6), Hg is Period 6, so yes. Wait, but initial thought was wrong. Let's correct:
• Transition Metal: Yes.
• Group 12: Yes.
• 6 electron energy level: Yes (Period 6 means 6 energy levels).
• Period 6: Yes.
• Member of actinide/lanthanide: No.
• Same period as erbium: Yes (both Period 6).
• Same group as zinc: Yes (Group 12).
• 80 protons: Yes (atomic number 80).
• Liquid at room temperature: Yes.

Wait, but let's confirm each:

1. Transition Metal: Hg is a transition metal (d - block, Group 12) – yes.
2. Group 12: Hg is in Group 12 – yes.
3. 6 electron energy level: Period number = number of electron shells (energy levels), Hg is Period 6 – so 6 energy levels – yes.
4. Period 6: Hg is in Period 6 – yes.
5. Member of actinide series: Actinides are Period 7, f - block – no.
6. Member of lanthanide series: Lanthanides are Period 6, f - block – Hg is d - block – no.
7. Same period as erbium: Erbium (Er) is a lanthanide, in Period 6 – Hg is Period 6 – yes.
8. Same group as zinc: Zinc (Zn) is Group 12 – Hg is Group 12 – yes.
9. 80 protons: Atomic number of Hg is 80, so protons = 80 – yes.
10. Liquid at room temperature: Hg is liquid at room temperature – yes.

So the correct options are: Transition Metal, Group 12, 6 electron energy level, Period 6, Same period as erbium, Same group as zinc, 80 protons, Liquid at room temperature.

Answer:

• Transition Metal
• Group 12
• 6 electron energy level
• Period 6
• Same period as erbium
• Same group as zinc
• 80 protons
• Liquid at room temperature